v2.0.0

[2.0.0] - 2016-11-18

Features

• Added support for the deepstream presence API, enabling querying and
  subscribing to who is online within a cluster. For example:

  ds.presence.getAll((users) => {
    users.forEach((username) => {
      console.log(`${username} is online`)
    })
  })
  
  ds.presence.subscribe((username, loggedIn) => {
    if (loggedIn) {
      console.log(`${username} has logged in`)
    } else {
      console.log(`${username} has logged out`)
    }
  })

Enhancements

• Added heartbeats over WebSocket connection
• Presence has been added to query and subscribe to who is online with the cluster
• E2E tests refactored

Breaking Changes

• Supports deepstream.io v2.0.0+ only
• Changed format of RPC request ACK messages to be more consistent with the rest of the specs
  #408
• We now depend only on browser/node.js WebSockets, removing support for TCP and engine.io
• Support for webRTC has been removed